Gehring Tested the Hypothesis That the Pax6 Gene Acts as a Master

question 156

Multiple Choice

Gehring tested the hypothesis that the Pax6 gene acts as a master regulator of eye development by introducing mouse Pax6 genes into the genome of a Drosophila and activating it in the fly's antennae. What happened, and did it support or refute his hypothesis?

• A)A compound eye developed on the antenna; this supports the hypothesis.
• B)A compound eye developed on the head; this supports the hypothesis.
• C)The antenna developed normally; this does not support the hypothesis.
• D)The antenna developed where the eye normally would be; this supports the hypothesis.
• E)The antenna developed where the eye would normally be; this does not support the hypothesis.

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